Activity

University of Cambridge: Nrich: Page Numbers

Curated by ACT

Exactly 195 digits have been used to number the pages in a book. How many pages does the book have? Sounds simple enough--if you have the right problem-solving skills. Solution provided.

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CCSS: Adaptable
Classroom Considerations
  • Knovation Readability Score: 3 (1 low difficulty, 5 high difficulty)
Common Core